Effect of Temperature, Salinity and Preservation Method on Hatching Rate of Resting Egg of Korean Rotifer, Brachionus plicatilis (S-type)

The effect of temperature ( and salinities ( ppt) on hatching rate of the resting egg of the Korean rotifer, Brachionus plicatilis was investigated. The highest hatching rate of the resting egg was at and 15 ppt. The hatching rates of the resting eggs with salinities were not significant at and . Hatching was faster at higher temperature. The resting eggs stored at in dark hatched simultaneously within two days, however, those at in dark hatched intermittently within 14 days. But, final hatching rate of the resting egg at was higher at than that at . With regard to drying temperature and time of resting egg, the resting egg dried at for 1 hour showed the highest hatching rate ().